I am S.Waseem, engaged in selling Natural Vanillin in Russia, thus, it is extremely important for me to select a reliable supplier of Natural Vanillin.
History of Supplier
History counts for a lot, a supplier with long history in the Natural Vanillin industry has a wealth of experience to accurately grasp the Natural Vanillin market, most of unexpected problems can be solved timely and accurately. The Chinese government gives all the enterprise a issued business license, from which history of enterprises can be found. Under such a fierce competition of Natural Vanillin market, enterprises who can survive over five years can normally be trusted.
The picture below shows the license certificate of Foodchem International Corporation, China’s leading supplier of food additive and food ingredients with establishing year of more than 8.
Sales of Supplier
There are tons of suppliers of Natural Vanillin in China, thus, supply scale should be important, Natural Vanillin suppliers with a certain size suppliers tend to have more bargaining power, in some country, we can even find their Natural Vanillin supply volumes through customs data.
Google “Company Name”
A renowned company name usually shows a great deal results on Goolge Search, because its company name is frequently searched by their customers or cited by other web sites.
Take “Foodchem International Corporation” as an example, as has been showed in the below picture, there comes out more than 298,000 searching results on Google. 
Company Name
As a professional trader or manufacturer of food additives, normally its company name has food, chemical, additives or other key words in it. Other trading companies who have affairs in all fields, usually performs unprofessionally.
Google “Website”
While Googling a company website, there will be attached links along with the website on result page. It is an effective and reliable route to judge company scale and brand awareness since not a single company is able to impact Google’s objective valuation towards any company.
Exhibition
Natural Vanillin suppliers will never ever lose the opportunity to communicate with customers face to face on exhibitions. Although with rapid development of the network, some people choose not to attend exhibitions, while substantial companies still avail these opportunities to meet their clients and looking for potential clients.
Therefore, exhibitions provide a efficient solution to find Natural Vanillin good suppliers: Visit suppliers’ websites to see their participation in the exhibitions.
Shipping and Payment
In order to meets different needs of buyers, according to intercoms, Natural Vanillin suppliers often provides several payment ways, such as FOB, L/C, D/P, T/T and so on.
Exquisite Website
Qualified Natural Vanillin suppliers tend to have more elaborate and professional web site, with better user experiences and less bugs or faults.
Certificate
A formal operation supplier of food additives normally passes ISO certificate as well as other well-known certificate like halal, kosher, ect.